LIKE Relational-operator Not Available

Visual COBOL and RM/COBOL differ in the way that they allow you to use regular expressions.

RM/COBOL has a LIKE relational-operator. Visual COBOL does not support the LIKE relational-operator. Instead, use the C$REGEXP library routine. C$REGEXP uses a call convention of zero, so when using it in a DIALECT"RM" program, where the default call convention is 1024, the call convention must be specified in the CALL statement for C$REGEXP.

The regular expressions supported by C$REGEXP differ somewhat from those used by the RM/COBOL LIKE relational-operator and between Windows and UNIX, so adjustments may be required in the regular expression syntax used.